Copy stable/9 to releng/9.3 as part of the 9.3-RELEASE cycle.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

MFC r226427:

Build rwho(1) with WARNS=6.

The only reason why it didn't build with WARNS=6, is because of some
simple to fix string formatting bugs.

Copy head to stable/9 as part of 9.0-RELEASE release cycle.

Approved by: re (implicit)

Remove the advertising clause from UCB copyrighted files in usr.bin. This
is in accordance with the information provided at
ftp://ftp.cs.berkeley.edu/pub/4bsd/README.Impt.License.Change

Also add $FreeBSD$ to a few files to keep svn happy.

Discussed with: imp, rwatson

Let the width of the username column depend on the rwho file format.

Right now the code uses UT_NAMESIZE, but this makes little sense,
because rwho(1) parses files generated by rwhod(8). Not utmp(5) files.

Modernise; ISOify, use __FBSDID(), use headers instead of hand-declaring.
Fix easy warnings.

remove __P

I've been meaning to do this for a while. Add an underscore to the
time_to_xxx() and xxx_to_time() functions. e.g. _time_to_xxx()
instead of time_to_xxx(), to make it more obvious that these are
stopgap functions & placemarkers and not meant to create a defacto
standard. They will eventually be replaced when a real standard
comes out of committee.

Fix time_t == int assumption, convert protocol int to time_t.

Don't attempt to parse %c

$Id$ -> $FreeBSD$

Be picky about the format of the commandline and cleanup
a warning related to qsort.

PR: 6420
Submitted by: Ruslan Ermilov <ru@ucb.crimea.ua>

Use err(3). Add usage() and prototypes. Add Xr to who(1).

compare return value from getopt against -1 rather than EOF, per the final
posix standard on the topic.

Fix my error from previous commit with mixing rwhod protocol
and utmp sizes.
Replace hardcoded constants by sizeofs or symbolic constants

Use UT_* contstants when possible instead of harcoded 8

2.2 candidate

Eliminated includes of the "temporary" backwards compatibility header
<sys/dir.h> in applications. Maintained existing (inadequate) ifdefs
for dir.h vs dirent.h in libdialog, amd and rarpd, but didn't add any
new ones.

Add setlocale LT_TIME

Change ctime to strftime %c to use national date/time representation.

Remove trailing whitespace.

My prevoius commit missed some things. The out_line didn't need
to be padded to 8 chars. Simply make sure that never more than 8 chars
are printed ( %-.8s ). The former commit otherwise hosed the width
calculation and landed on different positions for the time output.
Also the strlen(xx_out_line) hoses the wide
calculation, so that it sometimes make it much larger than necessary.
Simply use always 8 chars for the out_line calculation now. Looks good
this way.

The out_line doesn't need to be zero terminated, so print it not with %s
but with a %-8.8s instead. this prevents funny output, if the out_line
contains a long hostname that is larger than 8 chars.

This commit was generated by cvs2svn to compensate for changes in r1590,
which included commits to RCS files with non-trunk default branches.

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